Improvement in tinsmiths  furnaces



M. OONNERQ Solderinglron Heater.

Patented Dec. 6, 1870.

aura; %taa5 MICHAEL ooNNnR, or PLYMOUTH, MICHIGAN.

Letters Patent No. 109,805, dated December 6, 1870.

IMPROVEMENT m'rmsmrrus FURNACES.

The Schedule referred to in these Letters Patent and making part of the same.

To whom 'it may concern .Be it known that I, MICHAEL (losses, of Plymouth, in the county of \Vayne and State of Michigan, have invented a new and useful Improvement in a Tinsrniths Furnace, vapor burning; and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon and being a part of this specification, in which- Figure 1 is a front cler ation of the device, with the door closed;

Figure 2 is the same view of thefu-rnace, with the door open; Figure 3 is a perspective view of the mufile; and

Figure 4 is an enlargedperspective view of'the burner.

Like letters indicate like parts in each figure.

The nature of this invention relates to a tinsmiths furnace, vapor burning, wherein the vapors of volatile hydrocarbons are employed to' heat the solderingirons.

It consists in the general construction and arrangement of the various parts, as hereinafter more fully set forth.

In the drawing- A represents a horizontal sheet-metal cylinder,

forn iing the body of the furnace, provided with a flue or chimney at the top, and a door, 13, at the front. (l is a reservoir, for containing naphtha orv othcr light hydrocarbon, from which a pipe, D, provided with a stop-cock, E, extends to andenters the side of the furnace about midway of its length, extending horizontally across its interior, below its greatest diameter, turning down and back, toward the center, terminating in a burner, F, as shown.

G'is amuflie, open at the ends, and secured to a plate, H, provided with an opening within the muflle. This plate is inserted in the furnace at or about the center, while its opening will be directly over the burner. Its front parteprojects through thedoor, forming a hearth to sustain the irons while being heated. The opening in the door is also provided with a hood, as shown.

The horizontal portion of the pipe is packed with cotton, wire, or other suitable material, toprcvent a too rap-id ilow of the fluid, and to prevent burning back.

The peculiar shape of the burner is fully shown in fig. 4.

Above the oritice a it resembles a flattened bellmonth, provided with openings 1) at the sides, which this furnace, the low cost of heating them as com pared with the charcoal furnace, in which the corn sumption of fuel procccds all day, whether the irons are needed all the time or not', and the small cost of construction,'will readily be perceived. i

To facilitatc the generation of the vapor in light ing up the burner, underneath it I place a' small cup,-

I, in which may be placed'a small quantity of the hydrocarbon and ignited, after the pipe has been filled and the supply shut off. The flame will soon volatilizc the fluid in the pipe below the stop-cock, which may then be opened, and combustion proceeds in the manner described.

\Vhat I'claim as my invention, and desire -to secure by Letters latcnt, is I The construction of a tinsmiths furnace, vapor burning, wherein the cylinder A, door B, reservoir 0, pipe 1), stop-cock E, burner F, muii'le G, and supporting plate 11, are arranged and operate in the manner and for the purpose set forth.

MICHAEL OONNER.

\Vituesses Fnnnnmcr; Ennn'rs, S. J. SPRAY. 

